"Yes! It was very enlightening. I'd still want to be careful... but it was enlightening. Something to remember in future. A development in magic, and the book will help my science. Certainly a productive day, all in all."

He looks to the chalk on the ground and absently smudges a ward with his foot. For a moment, he pauses, then looks to Adia again. "Thank you for the book, I can take that back."